CVE-2026-98417
Received
Received - Intake
ESP-in-TCP Transport Header Handling Flaw in Linux Kernel
Vulnerability report for CVE-2026-98417, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.
Publication date: 2026-10-14
Last updated on: 2026-10-14
Assigner: kernel.org
Description
Description
In the Linux kernel, the following vulnerability has been resolved:
net: xfrm: reject unrepresentable espintcp transport headers
ESP-in-TCP can hand xfrm packets whose transport header offset no longer
fits after the stream parser trims the TCP envelope. The plain transport
header reset truncates that offset and triggers the skb warning path.
Use the careful transport-header helper and drop the skb through the
existing XFRM error path when the offset cannot be represented.
CVSS Scores
EPSS Scores
| Probability: | |
| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| Linux | Linux | e27cca96cd68fa2c6814c90f9a1cfd36bb68c593 |
| Linux | Linux | e27cca96cd68fa2c6814c90f9a1cfd36bb68c593 |
| Linux | Linux | e27cca96cd68fa2c6814c90f9a1cfd36bb68c593 |
| Linux | Linux | e27cca96cd68fa2c6814c90f9a1cfd36bb68c593 |
| Linux | Linux | e27cca96cd68fa2c6814c90f9a1cfd36bb68c593 |
| Linux | Linux | e27cca96cd68fa2c6814c90f9a1cfd36bb68c593 |
| Linux | Linux | e27cca96cd68fa2c6814c90f9a1cfd36bb68c593 |
| Linux | Linux | e27cca96cd68fa2c6814c90f9a1cfd36bb68c593 |
| Linux | Linux | 5.6 |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-UNKNOWN |
